Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Potential adverse effect with hydroxychloroquine Chloroquine in lupus Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Hydroxychloroquine oral tablet can interact with other medications, vitamins, or herbs you may be taking. An interaction is when a substance changes the way a drug works. Plaquenil is the brand name for the prescription drug hydroxychloroquine. It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Hydroxychloroquine is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Plaquenil and vitamins Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects., Hydroxychloroquine Side Effects, Dosage, Uses, and More Hydroxychloroquine multiple sclerosisPlaquenil keep you awakeChloroquine and pregnancy Hydroxychloroquine Plaquenil is a drug that is classified as an anti-malarial drug. Plaquenil is prescribed for the treatment or prevention of malaria. It is also prescribed for the treatment of rheumatoid arthritis, lupus, and the side effects of lupus such as hair loss, joint pain, and more. Hydroxychloroquine Plaquenil Side Effects & Dosage for Malaria. Plaquenil Hydroxychloroquine - Side Effects, Dosage, Interactions - Drugs. Vitamin d and Hydroxychloroquine sulfate drug interactions.. Hydroxychloroquine Plaquenil is considered a disease-modifying anti-rheumatic drug DMARD. It can decrease the pain and swelling of arthritis. It may prevent joint damage and reduce the risk of long-term disability. Hydroxychloroquine is in a class of medications that was first used to prevent and treat malaria. Aug 14, 2017 Plaquenil can cause serious side effects when used in high doses for chronic diseases such as RA over the long term. The New Zealand Dermatological Society recommends that to decrease the risk of retina damage, no more than 200mg of Plaquenil should be taken a day, and a dose of 400mg per day should be taken no longer than a few weeks. Hydroxychloroquine is a quinoline medicine used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia.